Fiber Optic Temperature Sensor

Unlike traditional temperature sensors; fiber optic temperature based sensors are immune to electro-magnetic interference, making our temperature measurement sensors robust and accurate in high-RF environments.

Our high-performance optical temperature sensor systems; include a full range of temperature sensors and converters perfect for a variety of applications, where thermocouple sensors would fail.

Download Fiber Optic Temperature
Sensor Selection Guide

  • • Fiber optic immersion sensors designed for solid, gas, and liquid temperature measurements.
  • • Fast-response fiber optic contact sensors designed for surface measurement and applications with large temperature gradients between surface and environment.
  • • Fiber optic life science sensors designed with small form factor for small temperature range applications.
  • • Palmsense2 handheld temperature measurement system.
  • • FluoTemp - GT-HT GT-ST DIN Rail temperature converter - high accuracy with enhanced diagnostics.



Immersion Temperature Measurement Systems

For solid, gas, and liquid temperature measurements

Designed to be as flexible as possible, our high-performance Immersion Temperature Measurement System consists of an immersion fiber optic temperature sensor, a converter (PalmSense2, Fluotemp, or PowerTemp), FluoSoft software and accessories such as adapters and extension cables.


  • • Robust and easy-to-use
  • • Customizable for OEM applications
  • • Fast, accurate and stable over a wide measurement range
  • • Suitable for a large variety of applications.


All systems are customizable and come with a converter, fiber optic sensor, FluoSoft software and accessories


Applications Include:
  • • Robust and easy-to-use
  • • Medical research
  • • Temperature measurement during Ultrasound
  • • Dehydration / microwave applications in food processing
  • • Temperature monitoring during X-Ray and CT Scanning
  • • Environmental temperature monitoring

Probe Type Operating Range Accuracy (BA/HA/SC) Sensing Tip Dimensions Probe Length* Wetted Material Model Information**
TF4 -40°C~+200°C ±1.0/0.5/0.3°C Ø1.1mm 2m or 5m PFA FTP-TF4-xxM-yy
TZ1 -40°C~+150°C ±1.0/0.5/0.3°C Ø2.3mm 2m or 5m ETFE FTP-TZ1-xxM-yy
NY2 -20°C~+80°C ±0.5/0.3/0.1°C Ø1.0mm 2m or 5m Nylon FTP-NY2-xxM-yy

*Customized probe lengths are available upon request
** xx stands for length and yy stands for accuracy




Contact Temperature Measurement Systems

For surface measurements

Designed to be as flexible as possible, our high-performance Contact Temperature Measurement System consists of a fiber optic temperature sensor, a converter (PalmSense2, Fluotemp, or PowerTemp), FluoSoft software and accessories such as adapters and extension cables.


  • • Robust and easy-to-use
  • • Customizable for OEM applications
  • • Fast, accurate and stable over a wide measurement range
  • • Suitable for a large variety of applications.


All systems are customizable and come with a converter, fiber optic sensor, FluoSoft software and accessories


Applications Include:
  • • Dry transformer hotspot monitoring
  • • Switchgear temperature monitoring
  • • Power generator temperature monitoring
  • • Microwave
  • • Semiconductor manufacturing temperature monitoring
  • • Laboratory testing
  • • MRI equipment temperature monitoring

Probe Type Operating Range Accuracy (BA/HA/SC) Sensing Tip Dimensions Probe Length* Wetted Material Model Information**
GENCON 0°C~+150°C ±0.5/0.3/NA°C Ø2.7mm 2m or 5m PEEK FTP-GENCON-xxM-yy

*Customized probe lengths are available upon request
** xx stands for length and yy stands for accuracy




Life Science Temperature Measurement Systems

For small temperature range applications

Our Life Science System features high accuracy fiber optic sensors designed for life science applications with small form factor for small temperature ranges.


  • • Fast and accurate
  • • Robust and reliable


All systems are customizable and come with a converter, fiber optic sensor, FluoSoft software and accessories


Applications Include:
  • • Biomedical applications
  • • Laboratory temperature monitoring

Probe Type Operating Range Accuracy (BA/HA/SC) Sensing Tip Dimensions Probe Length* Wetted Material Model Information**
LNY2 +10°C~+60°C ±NA/0.2/0.1°C Ø1.0mm 2m or 5m Polyethylene FTP-LNY2-xxM-yy
LPIM +10°C~+60°C ±NA/0.5/0.3°C Ø0.4mm 2m or 5m Polyimide FTP-LPIM-xxM-yy

*Customized probe lengths are available upon request
** xx stands for length and yy stands for accuracy




PalmSense2

PalmSense2 is the next generation of portable, handheld temperature measurement system from Photon Control. Use PalmSense2 in high temperature RF environments or EMI applications, labs and field service. Have the freedom to move around critical sensing points with up to 24 hours of battery life which is rechargeable via USB connection. Data is logged or downloaded via USB 2.0 from the system’s 4MB internal memory.

PalmSense2 can be paired with a Fiber optic Contact or an Immersion temperature measurement sensor.


  • • Wide temperature measurement range 0 to +150°C (probe dependent)
  • • High accuracy +/-0.05°C (probe dependent)
  • • Resolution +/- 0.01°C
  • • Handheld light-weight design
  • • Large 160 X 240 pixels LCD display



Applications Include:
  • • Research laboratories
  • • EMI, RFI, MRI, X-Ray and microwave environments
  • • Medical applications
  • • Harsh Chemical Environments
  • • High Voltage environments
  • • Semiconductor Industry

Model Type Temperature Range Accuracy Probe Length* Wetted Material
FTP-GENCON1-ST-1M Contact 0 to +150 °C ±0.5 °C 1m Gold- plated copper
FTP-NY2-ST-1M Immersion 0 to +80 °C ±0.5 °C 1m Polyethylene

note: PalmSense2 is shipped with a contact or an immersion Temperature Measurement Probe and Software




FluoTemp GT-HT Temperature Converter


Designed for High Temperature & EMI environments providing industry leading accuracy and reliability.

The FluoTemp GT-HT temperature converter offers high accuracy, reliability and enhanced diagnostics in high temperature and electro-magnetic interference (EMI) environments. The FluoTemp GT-HT features a robust aluminum enclosure to allow highly accurate measurements ranging from -40°C to +200°C (probe dependent) with accuracy of +/- 0.05°C. The FluoTemp GT-HT is well suited for high EMI applications in wide range of industries such as Semiconductor, Power and Life Sciences where precision and accuracy are critical.


  • • High Accuracy +/- 0.05°C
  • • Robust Aluminum Enclosure
  • • Measurement Range -40°C to +200°C (probe dependent)
  • • High Resolution 16-bit 4-20mA
  • • Enhanced Diagnostics
  • • Operating Range -20°C to +60°C
  • • High EMI Resistance
  • • Supports Labview and Visual Basic / .NET

Applications Include:
  • • High Voltage environments
  • • Semiconductor manufacturing
  • • Temperature monitoring
  • • EMI
  • • RFI
  • • MRI
  • • X-Ray
  • • Microwave environments
  • • OEM



FluoTemp GT-ST Temperature Converter


The FluoTemp GT-ST temperature converter is the FluoTemp lower cost solution. Offering high accuracy, reliability in high temperature and electro-magnetic interference (EMI) environments, when paired with a Photon Control fiber optic sensor. The FluoTemp GT-ST features accurate measurements ranging from -40°C to +200°C (probe dependent) with accuracy of +/- 0.05°C. The FluoTemp GT-ST is well suited for high EMI applications in wide range of industries such as Semiconductor, Power and Life Sciences where precision and accuracy are critical.


  • • High Accuracy +/- 0.05°C
  • • Measurement Range -40°C to +200°C (probe dependent)
  • • High Resolution 16-bit 4-20mA
  • • Operating Range -20°C to +60°C
  • • EMI Resistance
  • • Supports Labview and Visual Basic / .NET

Applications Include:
  • • High Voltage environments
  • • Semiconductor manufacturing
  • • Temperature monitoring
  • • EMI
  • • RFI
  • • MRI
  • • X-Ray
  • • Microwave environments
  • • OEM



Photon Control Fiber Optic Temperature Sensor Systems